Specifications

STATus Commands
STATus:QUEStionable:NTRansition <value>
STATus:QUEStionable:NTRansition?
STATus:QUEStionable:PTRansition <value>
STATus:QUEStionable:PTRansition?
Sets and queries the value of the NTR (Negative-Transition) and PTR (Positive-Transition) registers. These registers
serve as a polarity filter between the Questionable Condition and Questionable Event registers.
When a bit in the NTR register is set to 1, then a 1-to-0 transition of the corresponding bit in the Questionable Condi-
tion register causes that bit in the Questionable Event register to be set.
When a bit in the PTR register is set to 1, then a 0-to-1 transition of the corresponding bit in the Questionable Condition
register causes that bit in the Questionable Event register to be set.
STATus:PRESet sets all bits in the PTR registers and clears all bits in the NTR registers.
Parameter Typical Return
A decimal value that corresponds to the binary-
weighted sum of the bits in the register.
<bit value>
Enable bit 3 and 4 in the questionable NTR register: STAT:QUES:NTR 24
Enable bit 3 and 4 in the questionable PTR register: STAT:QUES:PTR 24
l If the same bits in both NTR and PTR registers are set to 1, then any transition of that bit at the Questionable Condi-
tion register sets the corresponding bit in the Questionable Event register.
l If the same bits in both NTR and PTR registers are set to 0, then no transition of that bit at the Questionable Condi-
tion register can set the corresponding bit in the Questionable Event register .
l The value returned is the binary-weighted sum of all bits set in the register.
*CLS
Clear Status Command. Clears the event registers in all register groups. Also clears the Status Byte and Error Queue. If
*CLS immediately follows a program message terminator (<NL>), then the Output Queue and the MAV bit are also
cleared. Refer to Status Tutorial for more information.
Parameter Typical Return
(none) (none)
Clear Event register bits, Status byte, and Error queue: *CLS
*ESE <value>
*ESE?
Event Status Enable Command and Query. Enables bits in the enable register for the Standard Event Status group. A 1
in the bit position enables the corresponding event. The selected bits are then reported to the ESB bit of the Status
Byte Register. The query reads the enable register and returns a decimal value which corresponds to the binary-
weighted sum of all bits set in the register. Refer to Status Tutorial for more information.
90 Agilent N8900 Series Operating and Service Guide